1396286980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{154799}}^1$

素因数の和:154860

約数の個数: 48

約数和(自身を含む): 3276806400

約数和(自身を除く): 1880519420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 154799, 309598, 619196, 773995, 1547990, 1702789, 3095980, 3405578, 6346759, 6811156, 8513945, 12693518, 17027890, 25387036, 31733795, 34055780, 63467590, 69814349, 126935180, 139628698, 279257396, 349071745, 698143490, 1396286980]

約数ペア:

[(1, 1396286980), (2, 698143490), (4, 349071745), (5, 279257396), (10, 139628698), (11, 126935180), (20, 69814349), (22, 63467590), (41, 34055780), (44, 31733795), (55, 25387036), (82, 17027890), (110, 12693518), (164, 8513945), (205, 6811156), (220, 6346759), (410, 3405578), (451, 3095980), (820, 1702789), (902, 1547990), (1804, 773995), (2255, 619196), (4510, 309598), (9020, 154799)]